Leviton DZPD3 Plug-In Dimmer

I recently bought a Leviton DZPD3 Plug-In Dimmer. I like the hardware and it seems to function well. However it does not seem to remember its last set dimming value if its turned off and back on again. It always seems to turn back on at 100% if on/off it just toggled rather than a dim level being explicitly set. This is annoying behavior. At the very lest this should be configurable. Any work around for this?

Which bring me to a second topic. Why the heck aren’t configurable parameters exposed in the Smarthings interface?